FANUC’s servo motors provide high reliability, easy maintenance, and electrical efficiency. They produce four types of motors. Their BETA i-B servos provide a significant performance for a low price—making them perfect starter machines. The ALPHA i-B servos deliver ultra-smooth running and superior acceleration for a precise, high-speed motor. Direct Drive DiS-B servos are perfect for rotary tables and axes because they provide huge amounts of torque with extremely smooth feed. Finally, the Linear LiS-B motors provide massive levels of thrust force with a simplified design to make maintenance easier.

If your FANUC servo is in need of repair, let us help. At A&C Electric, we know how valuable your time is, and understand how much a broken motor could be costing you. That’s why we pull out all the stops to get your motor fixed and back to you as soon as possible for a great price. Our team of servo motor repair specialists are some of the best in the industry, and will waste no time fixing your motor. If you see your FANUC model listed below, give us a call. We’re ready to answer any of your questions and are always happy to help.

Midwest FANUC Servo Motor Repair Capabilities Catalog

Search for your FANUC part number, or find the part by model and specification.

A&C Electric repairs all FANUC servo motors:

A&C Electric is a Fanuc servo motor repair service in Michigan stocking over 3,000 Fanuc servo motors, available for both exchange and outright sale. Due to this large parts inventory and our expertise, we ensure that our lead time and price is second to none. We use Fanuc OEM parts in all our repairs, and include a two year warranty on every job trusted to us.

Reduce your expenses while ensuring excellent performance by partnering with A&C Electric for all your servo motor repair needs. Unbeatable servo motor repair services from A&C Electric saved our customers documented millions last year alone compared to purchasing units. From repairing vital mechanical components to testing and adjusting sensitive electrical applications, A&C Electric is your number one source for high quality servo motor repair services. Our motor repair center in Michigan gives you fast turn-around for servo repairs, especially for customers in the Midwest. If our quick turnaround times aren't quick enough, we also carry a large stock of restored Fanuc motors for sale.

Please look at our servo service report to see a sample of our Fanuc servo motor repairs.

Our typical servo repair process includes:

Customer informs A&C Electric about their Fanuc servo motor repair specifications and labels their required lead time as Regular, Rush or Overtime Rush.
Customer then ships their Fanuc servo motor to A&C Electric using specialized packaging capable of effectively and safely supporting the motor’s frame.
Your Fanuc is completely dismantled, cleaned and professionally inspected for any needed repairs or damaged components.
A&C Electric notifies our customer with a quote regarding the required components and services necessary for repairing your Fanuc.
A&C Electric repairs and tests your Fanuc servo motor.
Your motor is shipped back to you.

Before Repair/After Repair

servo motor repair michigan

Check out our motor repair capabilities or contact FANUC repair experts today.

Servo Lab Capabilities

We have documented 96 different Servo Manufacturer repair reports in our Database

We repair AC Servos, DC Servos, AC Spindles, and AC Actuators

Capable of 24-hour repairs in many cases

We have thousands of spare and rebuilt motors in our inventory for parts or exchange motors

Servo Lab Repair Procedures

Data

Motor nameplate data is recorded

Inspection

A visual inspection of any damage to the motor.

We check for

Damaged Leads/Terminals
Worn output shaft/keyways
Cracks in end bells or covers

Job Ticket

We complete to full write up off all motor data

Including

All winding tests (Resistance, Meg Ω, Continuity)
All bearing sizes
All seal sizes
Brake torque tests (Record Torque, winding resistance)
Feedback Tests (Tachometer/Encoder)

Motor Disassembly

Bearing and seal sizes are recorded
Bearing fits are measured on shaft and End bell
Brake torque is measured as well as resistance and Meg Ω
More winding tests are performed (Surge and HiPOT tests)
Stator is then washed and baked in oven
Magnets are inspected for cracks or if loose on shaft
Encoder is tested with either (Heidenhain PWM20, Sick PGT-11, or Mitchell Electronics equipment)

Assembly

New bearings are installed
New seals are installed
If required, new windings are impregnated
Brakes are rebuilt or replaced depending on manufacturer design.
Rebuilt or New encoders are installed and aligned using:
(Heidenhain PWM20, Sick PGT-11, or Mitchell Electronics equipment)

Rotor Balancing and Testing

Rotor is run through a full vibration diagnostic

Run Testing

Every Motor is Run for a minimum of 1 hour using one of our drives.
We use Siemens S110, S120, IndraDrive, AB Kinetix 300, Yaskawa 7, and AMC drives

Service Report

A Final 3-page Service Report is filled out
Pinout diagram for power and feedback is provided
Brake torque is recorded a final time for our Service Reports
A photo of nameplate and motor is attached
A motor tag is installed on motor with QR code linking Service Report and Job Histories
If requested, a YouTube link is attached to the service report of motor

Electrical Apparatus Service Association

A&C Electric is a certified distributor service center.